Health physics experiences in ued during handling of depleted uranium

This paper describes Health Physics experience during processing of Deeply Depleted Uranium (from PREFRE) at Uranium Metal Plant. It was observed that there is a significant difference in radiological status due to the handling of DDU oxide from Tarapur reprocessing plant. Radiation background during DDU handling was significantly higher as compared to natural uranium processing. Due to 232 U, thoron daughter's concentration in working atmosphere was also observed which was found with in the apportionment provided for DDU handling.